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Patent Searching and Data


Title:
BLOOD PUMP
Document Type and Number:
WIPO Patent Application WO/2013/118419
Kind Code:
A1
Abstract:
[Problem] The purpose of the present invention is to obtain a centrifugal blood pump for circulating blood wherein an impeller makes no contact at all with a housing and a rotating shaft and moves rotatingly with the impeller in a stably levitating state. The purpose of the present invention is also to obtain a blood pump in which the impeller rotates at high speed even when the blood pump is reduced in scale. [Solution] Providing a magnet of enhanced magnetic force to the inside of a housing and to an outer peripheral surface of an impeller and providing a fixed-interval spacing to the periphery of a bearing section makes it possible to ensure a state where no contact at all is made between the housing, a shaft, and the impeller; and makes it possible to cause the impeller to rotate stably over a long period of time.

Inventors:
TAKATANI SETSUO (JP)
AKAO AKIHISA (JP)
SHINZI TADAHIKO (JP)
Application Number:
JP2012/083881
Publication Date:
August 15, 2013
Filing Date:
December 27, 2012
Export Citation:
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Assignee:
MEDTECH HEART INC. (5-26-11, Nakagawa Tsuzuki-ku, Yokohama-sh, Kanagawa 01, 〒2240001, JP)
International Classes:
F04D13/02; A61M1/10; F04D7/04; F04D29/048; F04D29/08; F16C17/02; F16D7/02; F16H49/00
Foreign References:
JP2006218010A2006-08-24
JP2007506027A2007-03-15
JP2000240587A2000-09-05
JPH0296497U1990-08-01
JP2003516212A2003-05-13
JP2005118237A2005-05-12
JP2002512333A2002-04-23
JP2005118237A2005-05-12
JP2006226390A2006-08-31
JP2006218010A2006-08-24
Other References:
See also references of EP 2813709A4
Attorney, Agent or Firm:
HIROSE Takayuki (The Royal Building 3F 3-8-7, Irifune, Chuo-k, Tokyo 42, 〒1040042, JP)
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Claims: